Added full support of Bot API 6.9
What's Changed
- Added MediaGroupBuilder for media group construction by @JrooTJunior in #1293
- Custom encoding support by @Olegt0rr in #1278
- Updated migration guide with API server by @Olegt0rr in #1299
- fix: added absent params for button builders by @Olegt0rr in #1304
- New towncrier docs link by @Olegt0rr in #1306
- Apply lint&reformat for existing code by @Olegt0rr in #1307
- Update deprecated pydantic fields access by @Olegt0rr in #1309
- Fixed priority of events isolation by @JrooTJunior in #1318
- Telegram Bot API 6.9 by @JrooTJunior in #1319
Full Changelog: v3.0.0...v3.1.0